428 lines
18 KiB
Go
428 lines
18 KiB
Go
// Copyright 2021 Google Inc. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package java
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import (
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"fmt"
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"android/soong/android"
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"android/soong/dexpreopt"
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)
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func init() {
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registerPlatformBootclasspathBuildComponents(android.InitRegistrationContext)
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}
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func registerPlatformBootclasspathBuildComponents(ctx android.RegistrationContext) {
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ctx.RegisterSingletonModuleType("platform_bootclasspath", platformBootclasspathFactory)
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}
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// The tags used for the dependencies between the platform bootclasspath and any configured boot
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// jars.
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var (
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platformBootclasspathArtBootJarDepTag = bootclasspathDependencyTag{name: "art-boot-jar"}
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platformBootclasspathNonUpdatableBootJarDepTag = bootclasspathDependencyTag{name: "non-updatable-boot-jar"}
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platformBootclasspathUpdatableBootJarDepTag = bootclasspathDependencyTag{name: "updatable-boot-jar"}
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)
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type platformBootclasspathModule struct {
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android.SingletonModuleBase
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ClasspathFragmentBase
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properties platformBootclasspathProperties
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// The apex:module pairs obtained from the configured modules.
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configuredModules []android.Module
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// The apex:module pairs obtained from the fragments.
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fragments []android.Module
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// Path to the monolithic hiddenapi-flags.csv file.
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hiddenAPIFlagsCSV android.OutputPath
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// Path to the monolithic hiddenapi-index.csv file.
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hiddenAPIIndexCSV android.OutputPath
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// Path to the monolithic hiddenapi-unsupported.csv file.
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hiddenAPIMetadataCSV android.OutputPath
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}
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type platformBootclasspathProperties struct {
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BootclasspathFragmentsDepsProperties
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Hidden_api HiddenAPIFlagFileProperties
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}
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func platformBootclasspathFactory() android.SingletonModule {
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m := &platformBootclasspathModule{}
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m.AddProperties(&m.properties)
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// TODO(satayev): split apex jars into separate configs.
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initClasspathFragment(m, BOOTCLASSPATH)
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android.InitAndroidArchModule(m, android.DeviceSupported, android.MultilibCommon)
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return m
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}
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var _ android.OutputFileProducer = (*platformBootclasspathModule)(nil)
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func (b *platformBootclasspathModule) AndroidMkEntries() (entries []android.AndroidMkEntries) {
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entries = append(entries, android.AndroidMkEntries{
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Class: "FAKE",
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// Need at least one output file in order for this to take effect.
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OutputFile: android.OptionalPathForPath(b.hiddenAPIFlagsCSV),
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Include: "$(BUILD_PHONY_PACKAGE)",
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})
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entries = append(entries, b.classpathFragmentBase().androidMkEntries()...)
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return
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}
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// Make the hidden API files available from the platform-bootclasspath module.
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func (b *platformBootclasspathModule) OutputFiles(tag string) (android.Paths, error) {
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switch tag {
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case "hiddenapi-flags.csv":
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return android.Paths{b.hiddenAPIFlagsCSV}, nil
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case "hiddenapi-index.csv":
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return android.Paths{b.hiddenAPIIndexCSV}, nil
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case "hiddenapi-metadata.csv":
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return android.Paths{b.hiddenAPIMetadataCSV}, nil
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}
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return nil, fmt.Errorf("unknown tag %s", tag)
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}
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func (b *platformBootclasspathModule) DepsMutator(ctx android.BottomUpMutatorContext) {
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b.hiddenAPIDepsMutator(ctx)
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if SkipDexpreoptBootJars(ctx) {
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return
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}
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// Add a dependency onto the dex2oat tool which is needed for creating the boot image. The
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// path is retrieved from the dependency by GetGlobalSoongConfig(ctx).
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dexpreopt.RegisterToolDeps(ctx)
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}
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func (b *platformBootclasspathModule) hiddenAPIDepsMutator(ctx android.BottomUpMutatorContext) {
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if ctx.Config().IsEnvTrue("UNSAFE_DISABLE_HIDDENAPI_FLAGS") {
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return
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}
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// Add dependencies onto the stub lib modules.
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apiLevelToStubLibModules := hiddenAPIComputeMonolithicStubLibModules(ctx.Config())
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hiddenAPIAddStubLibDependencies(ctx, apiLevelToStubLibModules)
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}
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func (b *platformBootclasspathModule) BootclasspathDepsMutator(ctx android.BottomUpMutatorContext) {
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// Add dependencies on all the modules configured in the "art" boot image.
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artImageConfig := genBootImageConfigs(ctx)[artBootImageName]
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addDependenciesOntoBootImageModules(ctx, artImageConfig.modules, platformBootclasspathArtBootJarDepTag)
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// Add dependencies on all the non-updatable module configured in the "boot" boot image. That does
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// not include modules configured in the "art" boot image.
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bootImageConfig := b.getImageConfig(ctx)
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addDependenciesOntoBootImageModules(ctx, bootImageConfig.modules, platformBootclasspathNonUpdatableBootJarDepTag)
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// Add dependencies on all the updatable modules.
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updatableModules := dexpreopt.GetGlobalConfig(ctx).UpdatableBootJars
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addDependenciesOntoBootImageModules(ctx, updatableModules, platformBootclasspathUpdatableBootJarDepTag)
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// Add dependencies on all the fragments.
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b.properties.BootclasspathFragmentsDepsProperties.addDependenciesOntoFragments(ctx)
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}
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func addDependenciesOntoBootImageModules(ctx android.BottomUpMutatorContext, modules android.ConfiguredJarList, tag bootclasspathDependencyTag) {
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for i := 0; i < modules.Len(); i++ {
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apex := modules.Apex(i)
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name := modules.Jar(i)
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addDependencyOntoApexModulePair(ctx, apex, name, tag)
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}
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}
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// GenerateSingletonBuildActions does nothing and must never do anything.
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//
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// This module only implements android.SingletonModule so that it can implement
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// android.SingletonMakeVarsProvider.
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func (b *platformBootclasspathModule) GenerateSingletonBuildActions(android.SingletonContext) {
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// Keep empty
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}
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func (d *platformBootclasspathModule) MakeVars(ctx android.MakeVarsContext) {
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d.generateHiddenApiMakeVars(ctx)
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}
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func (b *platformBootclasspathModule) GenerateAndroidBuildActions(ctx android.ModuleContext) {
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// Gather all the dependencies from the art, updatable and non-updatable boot jars.
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artModules := gatherApexModulePairDepsWithTag(ctx, platformBootclasspathArtBootJarDepTag)
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nonUpdatableModules := gatherApexModulePairDepsWithTag(ctx, platformBootclasspathNonUpdatableBootJarDepTag)
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updatableModules := gatherApexModulePairDepsWithTag(ctx, platformBootclasspathUpdatableBootJarDepTag)
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// Concatenate them all, in order as they would appear on the bootclasspath.
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var allModules []android.Module
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allModules = append(allModules, artModules...)
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allModules = append(allModules, nonUpdatableModules...)
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allModules = append(allModules, updatableModules...)
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b.configuredModules = allModules
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// Gather all the fragments dependencies.
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b.fragments = gatherApexModulePairDepsWithTag(ctx, bootclasspathFragmentDepTag)
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// Check the configuration of the boot modules.
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// ART modules are checked by the art-bootclasspath-fragment.
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b.checkNonUpdatableModules(ctx, nonUpdatableModules)
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b.checkUpdatableModules(ctx, updatableModules)
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b.generateClasspathProtoBuildActions(ctx)
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bootDexJarByModule := b.generateHiddenAPIBuildActions(ctx, b.configuredModules, b.fragments)
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buildRuleForBootJarsPackageCheck(ctx, bootDexJarByModule)
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// Nothing to do if skipping the dexpreopt of boot image jars.
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if SkipDexpreoptBootJars(ctx) {
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return
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}
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b.generateBootImageBuildActions(ctx, nonUpdatableModules, updatableModules)
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}
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// Generate classpaths.proto config
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func (b *platformBootclasspathModule) generateClasspathProtoBuildActions(ctx android.ModuleContext) {
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// ART and platform boot jars must have a corresponding entry in DEX2OATBOOTCLASSPATH
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classpathJars := configuredJarListToClasspathJars(ctx, b.ClasspathFragmentToConfiguredJarList(ctx), BOOTCLASSPATH, DEX2OATBOOTCLASSPATH)
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b.classpathFragmentBase().generateClasspathProtoBuildActions(ctx, classpathJars)
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}
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func (b *platformBootclasspathModule) ClasspathFragmentToConfiguredJarList(ctx android.ModuleContext) android.ConfiguredJarList {
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return b.getImageConfig(ctx).modules
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}
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// checkNonUpdatableModules ensures that the non-updatable modules supplied are not part of an
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// updatable module.
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func (b *platformBootclasspathModule) checkNonUpdatableModules(ctx android.ModuleContext, modules []android.Module) {
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for _, m := range modules {
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apexInfo := ctx.OtherModuleProvider(m, android.ApexInfoProvider).(android.ApexInfo)
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fromUpdatableApex := apexInfo.Updatable
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if fromUpdatableApex {
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// error: this jar is part of an updatable apex
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ctx.ModuleErrorf("module %q from updatable apexes %q is not allowed in the framework boot image", ctx.OtherModuleName(m), apexInfo.InApexVariants)
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} else {
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// ok: this jar is part of the platform or a non-updatable apex
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}
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}
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}
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// checkUpdatableModules ensures that the updatable modules supplied are not from the platform.
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func (b *platformBootclasspathModule) checkUpdatableModules(ctx android.ModuleContext, modules []android.Module) {
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for _, m := range modules {
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apexInfo := ctx.OtherModuleProvider(m, android.ApexInfoProvider).(android.ApexInfo)
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fromUpdatableApex := apexInfo.Updatable
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if fromUpdatableApex {
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// ok: this jar is part of an updatable apex
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} else {
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name := ctx.OtherModuleName(m)
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if apexInfo.IsForPlatform() {
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// If AlwaysUsePrebuiltSdks() returns true then it is possible that the updatable list will
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// include platform variants of a prebuilt module due to workarounds elsewhere. In that case
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// do not treat this as an error.
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// TODO(b/179354495): Always treat this as an error when migration to bootclasspath_fragment
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// modules is complete.
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if !ctx.Config().AlwaysUsePrebuiltSdks() {
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// error: this jar is part of the platform
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ctx.ModuleErrorf("module %q from platform is not allowed in the updatable boot jars list", name)
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}
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} else {
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// TODO(b/177892522): Treat this as an error.
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// Cannot do that at the moment because framework-wifi and framework-tethering are in the
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// PRODUCT_UPDATABLE_BOOT_JARS but not marked as updatable in AOSP.
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}
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}
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}
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}
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func (b *platformBootclasspathModule) getImageConfig(ctx android.EarlyModuleContext) *bootImageConfig {
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return defaultBootImageConfig(ctx)
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}
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// generateHiddenAPIBuildActions generates all the hidden API related build rules.
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func (b *platformBootclasspathModule) generateHiddenAPIBuildActions(ctx android.ModuleContext, modules []android.Module, fragments []android.Module) bootDexJarByModule {
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// Save the paths to the monolithic files for retrieval via OutputFiles().
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b.hiddenAPIFlagsCSV = hiddenAPISingletonPaths(ctx).flags
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b.hiddenAPIIndexCSV = hiddenAPISingletonPaths(ctx).index
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b.hiddenAPIMetadataCSV = hiddenAPISingletonPaths(ctx).metadata
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bootDexJarByModule := extractBootDexJarsFromModules(ctx, modules)
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// Don't run any hiddenapi rules if UNSAFE_DISABLE_HIDDENAPI_FLAGS=true. This is a performance
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// optimization that can be used to reduce the incremental build time but as its name suggests it
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// can be unsafe to use, e.g. when the changes affect anything that goes on the bootclasspath.
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if ctx.Config().IsEnvTrue("UNSAFE_DISABLE_HIDDENAPI_FLAGS") {
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paths := android.OutputPaths{b.hiddenAPIFlagsCSV, b.hiddenAPIIndexCSV, b.hiddenAPIMetadataCSV}
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for _, path := range paths {
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ctx.Build(pctx, android.BuildParams{
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Rule: android.Touch,
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Output: path,
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})
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}
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return bootDexJarByModule
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}
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// Construct a list of ClasspathElement objects from the modules and fragments.
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classpathElements := CreateClasspathElements(ctx, modules, fragments)
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monolithicInfo := b.createAndProvideMonolithicHiddenAPIInfo(ctx, classpathElements)
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// Extract the classes jars only from those libraries that do not have corresponding fragments as
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// the fragments will have already provided the flags that are needed.
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classesJars := monolithicInfo.ClassesJars
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// Create the input to pass to buildRuleToGenerateHiddenAPIStubFlagsFile
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input := newHiddenAPIFlagInput()
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// Gather stub library information from the dependencies on modules provided by
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// hiddenAPIComputeMonolithicStubLibModules.
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input.gatherStubLibInfo(ctx, nil)
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// Use the flag files from this module and all the fragments.
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input.FlagFilesByCategory = monolithicInfo.FlagsFilesByCategory
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// Generate the monolithic stub-flags.csv file.
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stubFlags := hiddenAPISingletonPaths(ctx).stubFlags
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buildRuleToGenerateHiddenAPIStubFlagsFile(ctx, "platform-bootclasspath-monolithic-hiddenapi-stub-flags", "monolithic hidden API stub flags", stubFlags, bootDexJarByModule.bootDexJars(), input, monolithicInfo.StubFlagsPaths)
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// Generate the annotation-flags.csv file from all the module annotations.
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annotationFlags := android.PathForModuleOut(ctx, "hiddenapi-monolithic", "annotation-flags-from-classes.csv")
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buildRuleToGenerateAnnotationFlags(ctx, "intermediate hidden API flags", classesJars, stubFlags, annotationFlags)
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// Generate the monolithic hiddenapi-flags.csv file.
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//
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// Use annotation flags generated directly from the classes jars as well as annotation flag files
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// provided by prebuilts.
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allAnnotationFlagFiles := android.Paths{annotationFlags}
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allAnnotationFlagFiles = append(allAnnotationFlagFiles, monolithicInfo.AnnotationFlagsPaths...)
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allFlags := hiddenAPISingletonPaths(ctx).flags
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buildRuleToGenerateHiddenApiFlags(ctx, "hiddenAPIFlagsFile", "monolithic hidden API flags", allFlags, stubFlags, allAnnotationFlagFiles, monolithicInfo.FlagsFilesByCategory, monolithicInfo.AllFlagsPaths, android.OptionalPath{})
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// Generate an intermediate monolithic hiddenapi-metadata.csv file directly from the annotations
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// in the source code.
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intermediateMetadataCSV := android.PathForModuleOut(ctx, "hiddenapi-monolithic", "metadata-from-classes.csv")
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buildRuleToGenerateMetadata(ctx, "intermediate hidden API metadata", classesJars, stubFlags, intermediateMetadataCSV)
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// Generate the monolithic hiddenapi-metadata.csv file.
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//
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// Use metadata files generated directly from the classes jars as well as metadata files provided
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// by prebuilts.
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//
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// This has the side effect of ensuring that the output file uses | quotes just in case that is
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// important for the tools that consume the metadata file.
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allMetadataFlagFiles := android.Paths{intermediateMetadataCSV}
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allMetadataFlagFiles = append(allMetadataFlagFiles, monolithicInfo.MetadataPaths...)
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metadataCSV := hiddenAPISingletonPaths(ctx).metadata
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b.buildRuleMergeCSV(ctx, "monolithic hidden API metadata", allMetadataFlagFiles, metadataCSV)
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// Generate an intermediate monolithic hiddenapi-index.csv file directly from the CSV files in the
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// classes jars.
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intermediateIndexCSV := android.PathForModuleOut(ctx, "hiddenapi-monolithic", "index-from-classes.csv")
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buildRuleToGenerateIndex(ctx, "intermediate hidden API index", classesJars, intermediateIndexCSV)
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// Generate the monolithic hiddenapi-index.csv file.
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//
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// Use index files generated directly from the classes jars as well as index files provided
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// by prebuilts.
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allIndexFlagFiles := android.Paths{intermediateIndexCSV}
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allIndexFlagFiles = append(allIndexFlagFiles, monolithicInfo.IndexPaths...)
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indexCSV := hiddenAPISingletonPaths(ctx).index
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b.buildRuleMergeCSV(ctx, "monolithic hidden API index", allIndexFlagFiles, indexCSV)
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return bootDexJarByModule
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}
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// createAndProvideMonolithicHiddenAPIInfo creates a MonolithicHiddenAPIInfo and provides it for
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// testing.
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func (b *platformBootclasspathModule) createAndProvideMonolithicHiddenAPIInfo(ctx android.ModuleContext, classpathElements ClasspathElements) MonolithicHiddenAPIInfo {
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// Create a temporary input structure in which to collate information provided directly by this
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// module, either through properties or direct dependencies.
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temporaryInput := newHiddenAPIFlagInput()
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// Create paths to the flag files specified in the properties.
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temporaryInput.extractFlagFilesFromProperties(ctx, &b.properties.Hidden_api)
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// Create the monolithic info, by starting with the flag files specified on this and then merging
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// in information from all the fragment dependencies of this.
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monolithicInfo := newMonolithicHiddenAPIInfo(ctx, temporaryInput.FlagFilesByCategory, classpathElements)
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// Store the information for testing.
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ctx.SetProvider(MonolithicHiddenAPIInfoProvider, monolithicInfo)
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return monolithicInfo
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}
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func (b *platformBootclasspathModule) buildRuleMergeCSV(ctx android.ModuleContext, desc string, inputPaths android.Paths, outputPath android.WritablePath) {
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rule := android.NewRuleBuilder(pctx, ctx)
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rule.Command().
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BuiltTool("merge_csv").
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Flag("--key_field signature").
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FlagWithOutput("--output=", outputPath).
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Inputs(inputPaths)
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rule.Build(desc, desc)
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}
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// generateHiddenApiMakeVars generates make variables needed by hidden API related make rules, e.g.
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// veridex and run-appcompat.
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func (b *platformBootclasspathModule) generateHiddenApiMakeVars(ctx android.MakeVarsContext) {
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if ctx.Config().IsEnvTrue("UNSAFE_DISABLE_HIDDENAPI_FLAGS") {
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return
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}
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// INTERNAL_PLATFORM_HIDDENAPI_FLAGS is used by Make rules in art/ and cts/.
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ctx.Strict("INTERNAL_PLATFORM_HIDDENAPI_FLAGS", b.hiddenAPIFlagsCSV.String())
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}
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// generateBootImageBuildActions generates ninja rules related to the boot image creation.
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func (b *platformBootclasspathModule) generateBootImageBuildActions(ctx android.ModuleContext, nonUpdatableModules, updatableModules []android.Module) {
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// Force the GlobalSoongConfig to be created and cached for use by the dex_bootjars
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// GenerateSingletonBuildActions method as it cannot create it for itself.
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dexpreopt.GetGlobalSoongConfig(ctx)
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imageConfig := b.getImageConfig(ctx)
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if imageConfig == nil {
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return
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}
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global := dexpreopt.GetGlobalConfig(ctx)
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if !shouldBuildBootImages(ctx.Config(), global) {
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return
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}
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// Generate the framework profile rule
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bootFrameworkProfileRule(ctx, imageConfig)
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// Generate the updatable bootclasspath packages rule.
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generateUpdatableBcpPackagesRule(ctx, imageConfig, updatableModules)
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// Copy non-updatable module dex jars to their predefined locations.
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nonUpdatableBootDexJarsByModule := extractEncodedDexJarsFromModules(ctx, nonUpdatableModules)
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copyBootJarsToPredefinedLocations(ctx, nonUpdatableBootDexJarsByModule, imageConfig.dexPathsByModule)
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// Copy updatable module dex jars to their predefined locations.
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config := GetUpdatableBootConfig(ctx)
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updatableBootDexJarsByModule := extractEncodedDexJarsFromModules(ctx, updatableModules)
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copyBootJarsToPredefinedLocations(ctx, updatableBootDexJarsByModule, config.dexPathsByModule)
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// Build a profile for the image config and then use that to build the boot image.
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profile := bootImageProfileRule(ctx, imageConfig)
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buildBootImage(ctx, imageConfig, profile)
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dumpOatRules(ctx, imageConfig)
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}
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